Railway journal lubricator pump



April 1953 J. J. HENNESSY 2,635,017

- RAILWAY JOURNAL LUBRICATOR PUMP Filed Oct. 5, 1949 2 SHEET S-$HEET l Patented Apr. 14, 1953 UNITED STATES OFFICE it'AiLw-AY JOURNAL maid-Amman? James J. Hennessy, Chamber's'burg, Pa.; assignor" to Hennessy .Lubricator Company, Inc., Cham= bersburg; 'Pa., a corporation of Delaware Applicationoctoberb,1949; seriai-No. 119,-s'si 15 Claims.

The invention relates to railway journallubricators in which a mechanical pump is actuated by the longitudinal play 'cf the journal in the journal box.

In' this type of lubricator; the stroke of' the pump piston may be effected by levers between the pump and thejournal actuatecl'loy the'axial movement of the journal;

One object of the'inve'ntion'is' to secure-an ef fective arrangement in which'the relative'lengths of the levers and-the resulting strokeof the pistori'may be arranged'as desired notwithstanding the restric'ted space to which the pump and its levers must be confined.

Another object is" to facilitate the insertion of the pump through the usual opening the end of the box into a position between thejou'rnal and'thebottmn of the journal box; and thereverse' movement of the-pump from beneath the' journal: The attainment of this object is facilitated by constructing the pump body of a'plu rality of sections which may be aligned with each other when'the pump is in operating position and maybe inclined relative to each other when the pump is being inserted into' or' withdrawn from its operating position; An associateddetail object is the provision ofefiective lubricant passageways through the pump body which will accom-' modate the inclinationof the parts as indicated.

One form of a generally similar lubricator pump is shown in Patent 2,331',83-5;1issued Obtober 12, 1943', to ,the' present inventor, in which a pair of cylinders extend longitudinally of'thebox and adjacent'the longitudinal" center line of the box and are fitted with pistons, each actuated'by alever extending from the pistontowards' the adjacent side of the box and fulcrum'ed; between its ends, on the pump body; The" overall length of;

eachlever is limited N to less' than one half the width of 'the'box and the"leh'gth*ofjthe pi stca movement is restricted since"thte widtliofthe pump body, on which the'lever is 'fulcrumed; must be-limited to accommodatethe'insertion and removal of the 1511111 U A r Adetailobject Of'th present inveiition 'is to" provide'a pluralityof' levers eah' having 'an' v ver all length corresponding to the width of thepun -pbody or,-'at least,- not limited tdthedistance tween the centerof' the pum rid an djacent I hei 'abcveobjects arid other detail objects as wil be referred-to below are attained by the pres; ent invention which'contemplate's a cylinder and piston near each sideofthe pump body and an actuating lever for each piston which extends from the piston transversely 'of'the body towards theoppo's ite side of the body and is fulc'rumed on: the "pumpbody near the 'end' of the lever remcte from the associated pistonand is acted upon at a point closeto 'its' ru1cr umby another lever fulcrumedbnthepump body and actuated by' the-end of t e, journal.

In the accompanying urawings illustrating a selected embodiment of-the invention:

Figure 1 -is-- a longitudinal vertical section through' the lower portion of a journal box mounted cn 'a journal and to'which the present lubricating device, in'cllidihg a Suitable distributor, has been applied. The section is taken along the line of Figure 2.

Figure '2 isffa verticaltransverse section through the box and looking-"at the forward end of the lubricator'. I r V l' i'gure'3 is a top viewof the pump, a po'rtion being; sectioned horizontally to better "illustrate the constructior'i." v v Figure '4 is" a detail verticallohgitudinal section taken on' theline'fl-FG ofFigure 3Q v p Figure 5 is a detail vertical transverse section taken on the line 5450f Figures;

Figure '6 is a diagrammatic view showing the relative position of parts of thepunip body during insertion into the box and removal from the box.

The journal J mounts the usual bearing and wedg (not shown upon which the journalbox is'carried and the latter has upright sidewalls l, a bottom wall 2 merging with the'side" walls" and with' the"box1 front wall sfwh'ich has' 'the usual ett n rrbvweewth d e tfer w lh boxjr r wall! has' t eusual'po'c et 6 and is equipped with'asuit bl d'us t ioil'guard G. l P e-a e e ement e fb T iil rb s tion" and in themselves 'donot'con'stitutethemes n ipi k i l e The'lubricating'deyiceconsists uni a um nitfi' and "al s Thef distributorunitiforihs tng-sumectora separate app'licatioh forpatehtffil'eibyinehugu st 3,

1949;"Serial No;"108,325i The pump'um't includes 3 a body section 9, an intermediate section I9 and an inner discharge section I I.

Body 9 mounts the operating levers I2 and I3 and. has spaced parallel bores I i formin the pump cylinders. Intermediate section II) has passageways I5 leading from cylinders Iii to intake ports I6 and to inclined conduits I|' which meet at I8 and connect with a common discharge port I9 leading through the rear face of section I9. Passageways I5 and H are provided with check valves 23 and 2| which function as described below.

Each check valve 2I is housed in a cage 39 fitted into a recess in section I0. Check valves 2I and 20 are restricted in their movement by the apertured disc 39a in cage 39 (Figure 5).

Inner section II includes a single shouldered bore 22 leading to an upwardly extending port 23 having a semi-spherical upwardly facing terminal 24 which supports the lower end of a conduit 25 leading to the pad 26 forming a part of the distributor which is the subject of the abovei mentioned application. Body 9 and section I9 are free to angle then relative to each other and are held yieldingly in the position shown in Figure 4 by coil springs 21 (Figures 5, 6), received in holes in body 9 and section I9. Pins 28, projecting from the face of section II), are received in holes 29 in body 9 and cooperate with springs 21 to position the parts relative to each other when in the position shown in Figure 4.

Ears 30 project from the right hand face of section I0 and receive between them lugs 3I on the corresponding end of discharge section II. Pins 32, extending through ears an and lugs 3|, pivotally assemble the two sections.

Telescoping sleeves 33 and 34 are slidable one within the other and are received in the left hand portion of bore 22 in section II and are yieldingly thrust outwardly by a coil spring 35. The right hand end of sleeve 34 is seated against a shoulder in bore 22 and the left hand end of sleeve 33 is seated against the discharge port l9 in section II].

Pistons 36 in cylinders I4 are thrust to the left by springs 31 and each is moved inwardly against the thrust of its spring by a compound lever arrangement comprising a lever I2, inclined to the horizontal and fulcrumed at 38 on lateral projections 9a on body 9, and an upright lever I3 consisting of a rod, the lower end of which I3a is bent at right angles and inserted into a recess in body 9 to form a fulcrum for the lever. The upper end of lever I3 has a contact terminal 40 for engaging the outer end of journal J by which the lever is actuated as the journal moves to the left. During such movement it moves the adjacent end of the associated lever I2 to the left and the opposite end of lever I2 acting through a strut 4| moves piston 36 inwardly against the thrust of spring 31.

Upon each outward movement of the pump sections, oil at the bottom of the box is drawn in through ports I6 past check valves 20 and upon inward movement of the pistons, oil is discharged past check valves 2| into conduits I1 and port I9 into telescoping sleeves 33, 34, bore 22, port 23 and conduit to distributor 26. Lugs 45 on projections 9a limit the movement of levers I3 and thereby prevent the levers falling over when the pump is being applied to or removed from its operating position in the box. I

The compound leverage arrangement makes it possible to locate the fulcrums of the journalengaging levers I3 adjacent to the box bottom wall. Hence the pump body may be made shallow and its projection outwardly of the plane of the end of the journal may be minimized. Each lever I2 is as long as may be desired to effect satisfactory leverage. Any desired reciprocal movement of the pistons may be obtained by shifting the fulcrums for levers I2 and the change in the lever arms will not require any increase in the depth, width or length of the pump body.

The crossed lever and compound lever arrangement positioned outwardly of the end of the journal facilitates provision'of any desired piston movement to meet different journal movements, different densities of oil and other conditions aifecting the pumping of an adequate supply of oil to the journal.

The underside of the pump body is elevated from box bottom wall 2 by rib-like elements 42 to provide clearance for the flow of oil to the pump intakes and screens 43 prevent dirt and other foreign matter from entering the intake.

A U-shaped holding plate 44 is secured to the box preferably by welding and fits around the main portion of the pump body and has recesses to receive body lugs 9a. Plate 44 positions the pump body in the box so that it is not shifted by the play of the journal.

By constructing the pump in three sections 9, I9, and Il, assembled so that they may angle relative to each other as shown in Figure 6, it is possible for the pump unit to be readily inserted and removed through the restricted space between the lower portion of the journal and the outwardly and upwardly curved wall 2, 3 of the box. Making intermediate section II} separate from body section 9 and discharge section It facilitates the boring of the cylinders and the drilling of passageways and the provision of check valves therein, leading from the intakes to the cylinders and from the cylinders to the common discharge conduit.

The details of construction facilitate the manufacture of the pump and the assembly makes possible the use of the pump in relatively small journal boxes and avoids the necessity of jacking up the box, removing the journal bearing and wedge and then dropping the box onto the journal, as has been required in some previous lubricating devices of the same general nature.

The details of the invention may be varied substantially without departing from the spirit of the invention and the exclusive use of those modifications coming within the scope of the claims is contemplated.

What is claimed is:

1. In a pump for a railway axle box journal lubricator, a pump body having a cylinder near one side of the body, a piston in said cylinder, a lever extending transversely of said piston towards the opposite side of the pump body and fulcrumed between its ends on said body and having an end actuating said piston, and a lever pivoted to said body and acting on the other end of said first-mentioned lever and extending upwardly therefrom and having an upper end arranged to oppose the end of a journal to which the pump and associated lubricator is applied.

2. In a railway axle box journal lubricator pump, a pump body, a cylinder at one side of the body, a piston in said cylinder, a lever for actuating said piston extending transversely of said body and being fulcrumed thereon at the opposite side of said body, and a lever pivoted at one end to said body and acting on said firstsme ma mentionedlever near itsfulcrunrand havingsits othi 'end spaced "atove me 'dy aiid opposing the end of a journal *=extendmg *over the pump.

3";In 'arailwa ame box journal lubricator pump a. pumpbody ha ns adcy i der spac transversely from the longitudinal- 1 center line of said bodiy alpistonzinr saidricylinder, a lever with, ,one end cooperating,,wi,th said pistorrex tendinglransversely of fthe body across aid centerlinetand fulcrumednearits othegend, on

said body, a substantially upright lever pivoted at its lower end to said body and acting on the latter-mentioned end of said first-mentioned lever with its upper end disposed to engage the end of a journal extending over the pump.

4. In a railway axle box journal lubricator pump, a pump body, spaced parallel cylinders with pistons, individual levers for actuating said pistons, each lever extending from the associated piston transversely of the body and beyond the opposite piston, and individual upright levers pivoted to said body and operatively associated with said first-mentioned levers respectively and disposed to engage the end of a journal with which the pump is associated.

5. In a railway axle box journal lubricator pump, a pump body having a pair of spaced parallel pump cylinders positioned near opposite sides of the pump body, pistons in said cylinders, means for operating each of said pistons by the longitudinal play of the journal to which the pump is applied, said means comprising a lever with one end actuating the pistons at one side of said body and extending transversely of the body and fulcrumed near its other end at the opposite side of said body, and a lever pivoted near one end of the latter-mentioned side of said body and acting on the fulcrumed end of said lever and having its other end above said body and arranged to oppose the end of a journal to which the pump is applied.

6. In a railway axle box journal lubricator pump, a pair of spaced parallel cylinders with pistons at substantiallythe same level, operating levers for said pistons extending transversely of the same and inclined from the horizontal, each lever having one end operatively associated with a piston and extending therefrom over the axis or the other piston and beyond the same, and substantially upright levers fulcrumed to the body and operatively associated with said firstmentioned lever with their upper ends disposed to engage the end of a journal to which the pump is applied.

'7. In a railway axle box journal lubricator pump, a pair of spaced parallel cylinders with pistons at substantially the same level, operating levers for said pistons extending transversely .of the same and inclined from the horizontal, each lever having one end operatively associated with a piston and fulcrumed to the body adjacent the other piston and extending over the axis of the latter-mentioned piston and beyond the same, and individual levers fulcrumed to the body adjacent the ends of the first-mentioned levers and engaging the same and extending upwardly therefrom with their upper ends disposed to engage the end of a journal to which the pump is applied.

8. In a railway axle box journal lubricator pump, a pair of sections hinged together, alined lubricant passages in said sections with their axes extending transversely of the sections hinge axis, a socket at the end of the passage in at least one of said sections and opposing the other device if bly received in I said 1 other '"passag with an end projected therefrom and seated sai'dfso'clr'e w 9 In a railway axle box journal -lubricator pumpywpailf or section "ngedfltogether; alined lubricant passages; in said sections} with their axesxextending transversely fithe sections hinge axis-, a==device slidably'r-fitting -in atle'ast one of said passages and comprisingtele'sooping sleeves, yielding-means thrusting said sleeves aparmjand seats in saidpassagesramme.outerxends of said sleeves.

10. A pump structure as described in claim 9 in which the major portions of the sections have substantially planar opposing faces and the device normally is positioned substantially wholly within one of said passages with a. part projecting therefrom and having a ball-like terminal, and the seat in the other section for said terminal comprises a spherical socket for said terminal positioned immediately adjacent the opposing faces of said sections.

11. In a railway axle box journal lubricator pump, a body section comprising spaced parallel cylinders each provided with a piston and having an opening through an upright face of the section adjacent the inner ends of the cylinders, an intermediate section having passageways alined with said openings, a central outlet port and transverse conduits connecting said port and passageways, there being spaced inlet ports through the bottom of the intermediate section adjacent to said passageways, and an elongated narrow section having a central conduit alined with said outlet port and terminating in an upwardly facing discharge terminal remote from said intermediate section, and means connecting said intermediate section to each of the other sections so that they may pivot relative to the intermediate section about horizonal axes extending transversely of the cylinders and said central conduit.

12. A structure as described in claim 11 which includes piston actuating levers extending transversely of the body section and fulcrumed thereon and crossing each other, and operating levers fulcrumed on the body section and extending upwardly therefrom, and means on said body section holding said operating levers in substantially upright positions.

13. In a railway axle box journal lubricator pump, a body unit comprising spaced parallel cylinders, pistons in said cylinder and piston operating levers on said body, a distributormounting unit having a central conduit and an upwardly facing terminal at the inner end thereof, and an intermediate unit with lubricant intake and discharge ports, with associated check valves and a common passage connected thereto and to said cylinders and said conduit, said body unit being pivotally assembled to swing vertically relative to each other transversely of the cylinder axes.

14. In a lubricator structure for insertion through the end of an ordinary railway journal box into the space below the journal upon which the box is mounted, a plurality of sections arranged end to end, means holding said sections assembled and providing for their tilting on each other about axes extending transversely of the length of the device, there being alined elongated lubricant passages in adjacent sections, an oil conducting device received in at least one of said passages, a bearing associated with the passage in the other section for the outer end of said deand pistons near the sides of the body, individual 5 levers for actuatingsaid pistons, each lever oscillating in a plane inclined to the horizontal, the levers crossing each other near the longitudinal center of the body, one in front of the other,

a connection between one end of, each lever 10 and an associated piston, a secondary lever fulcrumed to the body adjacent the other end of each first-mentioned lever and extending therefrom upwardly to contact the end of a journal to which the device is applied.

JAMES J. HENNESSY.

References Cited in the file of this patent 'UNITED STATES PATENTS Number Name Date 2,272,199 Hennessy Feb. 10, 1942 2,331,835 Hennessy Oct. 12, 1943 

